Radiator assembly for internalcombustion engines and the like



May 13, 1952 R. o. NUSBAUM 2,596,539

RADIATOR ASSEMBLY FOR INTERNAL-COMBUSTION ENGINES AND THE LIKE Filed 001". 21, 1949 flax /6 z IN V EN TOR.

to follow.

Patented May 13, 1952 RADIATOR. ASSEMBLY non INTERNAL- COMBUSTIONENGINES AND THE LIKE Robert Nusbaum, Elkharis lnd. 'Ajib'iidbi; c t er 21, 1949, Serial No. 122389 This invention relates to improvements in radiator assemblies for internal combustion engines and the like.

The main objects of this invention are:

First, to provide a radiator assembly for internal combustion engines and the like which permits the eifective inspection and cleaning of the core or heat exchange unit without the necessity for removing the tank or header from the heat exchange unit; l t I Second, to provide a radiator assembly for internal combustion engines and the like with a screen which can be readily removed for cleaning or replacement.

Third, to provide a structure embodying. these advantages which permits eifective servicing by relatively unskilled workmen Objects relating to details and economies of the invention will appear from the description The invention is pointed out in the claims. p

A preferred embodiment of the invention is illustrated in the accompanyingdrawing, in which:

Fig. 1 is an enlarged fragmentary viewin vertical section on a line corresponding to line l-l of Fig. 2.

Fig. 2 is a fragmentary plan view with parts of the cover or closure of the tank or header being broken away to illustrate the relation to the heat exchange unit.

Fig. 3 is a fragmentary elevational View of a modified form or embodiment of my invention.

The embodiment of my invention illustrated in the accompanying drawing comprises a heat exchange unit or core I comprising a plurality of finned vertical tubes 2. The tank or header 3 has an opening 4 in the bottom thereof preferably surrounded by the upwardly projecting flange 5. This tank or header 3 is fixedly secured to the heat exchange unit as by soldering or other suitable means as is indicated at 6. The opening 4 in the bottom of the header is of such dimensions as to embrace all of the tubes of the heat exchange unit. The top wall 1 of the header is provided with an elongated opening 8, the edge around the opening being downwardly oifset at 9 providing an upwardly facing gasket seat Hi for the gasket H. The closure or cover I2 is upwardly offset at 13 to provide a downwardly facing gasket seat M receiving the gasket. A plurality of turn button type latches [5 are provided, these being mounted on threaded studs [6 slotted at I51 to receive a tool to permit the latches being turned to engaging position as shown in Fig. 1 in which position the cover is teams. (Cl.257--125) clamped .by the thumb nut Th 'e reverse cleaning thereof by means of a rod-like implement.

In the embodiment shownin Figs. 1 and 2 the filling opening ipr'ovided rwith acap I8 is disposed at one end of the opening. 8.v In the'embodimentshowniin Fig. 3 the closure. [9 isprovided with the filling opening closed .by'the cap20.

The rear wall 'of the headeris' provided with a nipple 12! disposed centrally. thereof 7 and adaptedto receive the'return conduit or hose 22 secured thereon by means offthe hose clampn23. The tubular screen 24 is. desirably elongated and is provided with a tubular coupling 25 fixedly secured thereto and projectinginto the screen, the coupling be'ingprovided witha downwardly facing discharge 26 and being desirably arranged .centrallyof the screen relative to its length. This connectioniil serves as a support for the screen. With this arrangement; the return water is effectively screened and as desired or when necessary the screen can be removed for cleaning or replacement. H.

To prevent the screen becoming disengaged I provide the cover with the depending finger 29 which engages the screen and prevents the coupling 25 becoming disengaged from the nipple 2!. The flange 5 around the opening 4 in the bottom of the header provides a sediment trap 2'! which is accessible for cleaning when the closure of the header is removed. With this arrangement of parts the radiator can be effectively cleaned without removing from the engine and without removing the tank or header from the core or heat exchange unit. It is desirable in use that the cooling medium in the system shall be sufficient to keep the header at least partially filled, this being necessary to secure the proper distribution of the water throughout the core. The coupling 25 is provided with a bailie 28 at its inner end which serves not only to direct the water downwardly in the header but tends to spread it out as delivered.

Structures embodying my invention may be eifectively serviced by relatively unskilled persons and in a fraction of the time that is necessary to service radiators which become clogged and require the dismounting and remounting on the vehicle and the removal and replacement of the header in order to efl'ectively clean the core or heat exchange unit. Such removal requires unsoldering and resoldering which requires great 3 skill and care in order to prevent damage to the core and to avoid leaks when the work has been completed.

I have illustrated and described my invention in highly practical embodiments thereof. I have not attempted to illustrate or describe other comprising a plurality of tubes, a sheet metal tank constituting a header for said tubes and having an opening in its top wall extending the major portion of the length thereof, the edge around the opening being downwardly offset providing a gasket seat, a sheet metal cover for said opening having a downwardly facing gasket seat at its edge, a gasket arranged on said seat of said tank to be received in said seat of said cover, a plurality of latches spacedly mounted on said cover and turnable to engage the underside of the tank top, a nipple disposed on the rear wall of the tank and adapted to constitute a connection for, a return circulating conduit to the unit, a tubular screen provided with a tubular coupling fixedly secured at right angles to said screen and constitutinga support for the screen, said coupling being telescopingly engaged in said 7 nipple and being provided with a downwardly directed discharge positioned centrally within the screen, and a depending finger on said cover engaging the screen when the cover is in position to prevent the withdrawal of the coupling from the nipple.

2. The combination of a heat exchange unit comprising a plurality of tubes, a sheet metal tank constituting a header for said tubes and having an opening in its top wall extending the major portion of the length thereof, a cover for said opening, means removably securing said cover to said tank, a return circulation connection opening to said tank, a tubular screen provided with a coupling fixedly secured thereto and constituting a support for the screen, said coupling being telescopingly engaged with said return circulation connection, and means on the cover engageable with said screen for preventin disengagement of the coupling when the cover is in closed position.

3. The combination of a heat exchange unit comprising a plurality of tubes, a sheet metal tank constituting a header for said tubes and having an opening in its top wall extending the major portion of the length thereof, a cover for said opening, a plurality of latches spacedly mounted on said cover and turnable to engage the underside of the tank top, a return circulation connection opening to said tank, and a tubular screen provided with a tubular coupling discharging within the screen fixedly secured there to and constituting a support element for the screen, said coupling being supportingly engaged with said return circulation connection, said screen being removable bodily from said tank through the opening therein and without distortion.

ROBERT O. NUSBAUM.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

